Dolichopus ungulatus 
Dotted Bee Fly 
Down-looker fly 
Downlooker snipefly 
Dryomyia circinans 
Dune Robber Fly 
Dusky Drone Fly 
Dusky-banded Leafwalker 
Dusky-winged Hover Fly 
Dysmachus trigonus 
Early Tachinid Fly 
Eastern Calligrapher 
Eastern cherry fruit fly 
Eastern Hornet Fly 
Eastern saltmarsh mosquito 
Eclimus gracilis 
Ectophasia crassipenis 
Efferia aestuans 
Efferia albibarbis 
Efferia tricella 
Efferia triton 
Elephant mosquito 
Elissoma brunnea 
Empis lutea